Gecko [ naturenectar.co.uk ]

Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2025-08-15 18:09
AFSDB.py	1.62 KB	-rw-r--r--	2024-02-18 18:35
AMTRELAY.py	3.3 KB	-rw-r--r--	2024-02-18 18:35
AVC.py	1 KB	-rw-r--r--	2024-02-18 18:35
CAA.py	2.45 KB	-rw-r--r--	2024-02-18 18:35
CDNSKEY.py	1.2 KB	-rw-r--r--	2024-02-18 18:35
CDS.py	1.14 KB	-rw-r--r--	2024-02-18 18:35
CERT.py	3.45 KB	-rw-r--r--	2024-02-18 18:35
CNAME.py	1.18 KB	-rw-r--r--	2024-02-18 18:35
CSYNC.py	2.38 KB	-rw-r--r--	2024-02-18 18:35
DLV.py	986 B	-rw-r--r--	2024-02-18 18:35
DNAME.py	1.12 KB	-rw-r--r--	2024-02-18 18:35
DNSKEY.py	1.19 KB	-rw-r--r--	2024-02-18 18:35
DS.py	995 B	-rw-r--r--	2024-02-18 18:35
EUI48.py	1.12 KB	-rw-r--r--	2024-02-18 18:35
EUI64.py	1.13 KB	-rw-r--r--	2024-02-18 18:35
GPOS.py	4.33 KB	-rw-r--r--	2024-02-18 18:35
HINFO.py	2.2 KB	-rw-r--r--	2024-02-18 18:35
HIP.py	3.15 KB	-rw-r--r--	2024-02-18 18:35
ISDN.py	2.65 KB	-rw-r--r--	2024-02-18 18:35
L32.py	1.26 KB	-rw-r--r--	2024-02-18 18:35
L64.py	1.55 KB	-rw-r--r--	2024-02-18 18:35
LOC.py	11.74 KB	-rw-r--r--	2024-02-18 18:35
LP.py	1.31 KB	-rw-r--r--	2024-02-18 18:35
MX.py	995 B	-rw-r--r--	2024-02-18 18:35
NID.py	1.51 KB	-rw-r--r--	2024-02-18 18:35
NINFO.py	1.02 KB	-rw-r--r--	2024-02-18 18:35
NS.py	995 B	-rw-r--r--	2024-02-18 18:35
NSEC.py	2.42 KB	-rw-r--r--	2024-02-18 18:35
NSEC3.py	4.23 KB	-rw-r--r--	2024-02-18 18:35
NSEC3PARAM.py	2.57 KB	-rw-r--r--	2024-02-18 18:35
OPENPGPKEY.py	1.81 KB	-rw-r--r--	2024-02-18 18:35
OPT.py	2.5 KB	-rw-r--r--	2024-02-18 18:35
PTR.py	997 B	-rw-r--r--	2024-02-18 18:35
RP.py	2.13 KB	-rw-r--r--	2024-02-18 18:35
RRSIG.py	4.81 KB	-rw-r--r--	2024-02-18 18:35
RT.py	1013 B	-rw-r--r--	2024-02-18 18:35
SMIMEA.py	222 B	-rw-r--r--	2024-02-18 18:35
SOA.py	3.07 KB	-rw-r--r--	2024-02-18 18:35
SPF.py	1022 B	-rw-r--r--	2024-02-18 18:35
SSHFP.py	2.47 KB	-rw-r--r--	2024-02-18 18:35
TKEY.py	4.82 KB	-rw-r--r--	2024-02-18 18:35
TLSA.py	218 B	-rw-r--r--	2024-02-18 18:35
TSIG.py	4.64 KB	-rw-r--r--	2024-02-18 18:35
TXT.py	1000 B	-rw-r--r--	2024-02-18 18:35
URI.py	2.85 KB	-rw-r--r--	2024-02-18 18:35
X25.py	1.9 KB	-rw-r--r--	2024-02-18 18:35
ZONEMD.py	2.34 KB	-rw-r--r--	2024-02-18 18:35
__init__.py	1.46 KB	-rw-r--r--	2024-02-18 18:35

Rename

# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license

import binascii
import struct

import dns.immutable
import dns.rdata
import dns.rdatatype
import dns.zonetypes

@dns.immutable.immutable
class ZONEMD(dns.rdata.Rdata):
    """ZONEMD record"""

# See RFC 8976

__slots__ = ["serial", "scheme", "hash_algorithm", "digest"]

def __init__(self, rdclass, rdtype, serial, scheme, hash_algorithm, digest):
        super().__init__(rdclass, rdtype)
        self.serial = self._as_uint32(serial)
        self.scheme = dns.zonetypes.DigestScheme.make(scheme)
        self.hash_algorithm = dns.zonetypes.DigestHashAlgorithm.make(hash_algorithm)
        self.digest = self._as_bytes(digest)

if self.scheme == 0:  # reserved, RFC 8976 Sec. 5.2
            raise ValueError("scheme 0 is reserved")
        if self.hash_algorithm == 0:  # reserved, RFC 8976 Sec. 5.3
            raise ValueError("hash_algorithm 0 is reserved")

hasher = dns.zonetypes._digest_hashers.get(self.hash_algorithm)
        if hasher and hasher().digest_size != len(self.digest):
            raise ValueError("digest length inconsistent with hash algorithm")

def to_text(self, origin=None, relativize=True, **kw):
        kw = kw.copy()
        chunksize = kw.pop("chunksize", 128)
        return "%d %d %d %s" % (
            self.serial,
            self.scheme,
            self.hash_algorithm,
            dns.rdata._hexify(self.digest, chunksize=chunksize, **kw),
        )

@classmethod
    def from_text(
        cls, rdclass, rdtype, tok, origin=None, relativize=True, relativize_to=None
    ):
        serial = tok.get_uint32()
        scheme = tok.get_uint8()
        hash_algorithm = tok.get_uint8()
        digest = tok.concatenate_remaining_identifiers().encode()
        digest = binascii.unhexlify(digest)
        return cls(rdclass, rdtype, serial, scheme, hash_algorithm, digest)

def _to_wire(self, file, compress=None, origin=None, canonicalize=False):
        header = struct.pack("!IBB", self.serial, self.scheme, self.hash_algorithm)
        file.write(header)
        file.write(self.digest)

@classmethod
    def from_wire_parser(cls, rdclass, rdtype, parser, origin=None):
        header = parser.get_struct("!IBB")
        digest = parser.get_remaining()
        return cls(rdclass, rdtype, header[0], header[1], header[2], digest)